caesarHacker.py - line 22 - Typo

`# handle the wrap-around if num is 26 or larger or less than 0`
Should be:
`# handle the wrap-around if num is less than 0`
When decrypting, the number to wrap-around can only be less than 0 since it is always doing a subtraction to decrypt.

Open caesarHacker.py and inspect line 22 in the decryption logic. Update the comment so it describes the less-than-zero wrap-around case, then verify that the wording matches the behavior shown in the surrounding code.

Written by the indexing model from the issue text.